Results 31 to 40 of about 21,402 (315)

Design and fabrication of Dy-free sintered permanent magnets with high coercivity

, 2012
The purpose of this study was to save heavy rare earth Dy in NdFeB production. By ways of optimizing preparation process and replacing Nd with Pr, Dy-free magnet with high coercivity was successfully prepared, the nominal composition is Pr14B6Co2.2Cu0 ...
Lee, Don, Don Lee, Chen, Bicheng, Guo, Shuai, Bicheng Chen, Shuai Guo, Changjiang Yan, Renjie Chen, Yan, Changjiang, Liu, Xingmin, Yan, A, Xingmin Liu, Aru Yan, Chen, Renjie, Yan, Aru   +14 more
core   +1 more source

Experimental approaches for micromagnetic coercivity analysis of advanced permanent magnet materials

Science and Technology of Advanced Materials, 2021
Although coercivity is one of the fundamental properties of permanent magnets, it has not been well understood. In this paper, micromagnetics and thermal activation magnetization reversal theories are briefly reviewed, and then our recent macroscopic and
Satoshi Okamoto
doaj   +1 more source

Coercive Sexual Strategies

Violence and Victims, 1998
This study examines the use of coercive sexual strategies by men and the outcomes of these behaviors for women. Using a sample of 541 college undergraduates, data were gathered from men on their use of three types of coercive sexual strategies and from women on their experiences with these same forms of behaviors.
Tyler, Kimberly A., Hoyt, Dan R., Whitbeck, Les B.   +2 more
openaire   +3 more sources

La–Mg-Substituted M-Type Sr-Hexaferrites for Enhanced Hard Magnetic Properties

Applied Sciences
This study investigates the structural and magnetic properties of La–Mg co-substituted M-type strontium hexaferrites with the compositions Sr1−xLaxFe12−xMgxO19 (x = 0, 0.05, 0.1, 0.15), synthesized via a conventional solid-state reaction route.
Jeong-Jin Kim, Young-Min Kang
doaj   +1 more source

Recent advances in SmFe12-based permanent magnets

Science and Technology of Advanced Materials, 2021
To realize a sustainable society, ‘green technology’ with low (or even zero) CO2 emissions is required. A key material in such technology is a permanent magnet because it is utilized for electric-power conversion in several applications including ...
Yukiko Takahashi, Hossein Sepehri-Amin, Tadakatsu Ohkubo   +2 more
doaj   +1 more source

Coercivity and Exchange Bias in Ti-Doped Maghemite Nanoparticles

Magnetochemistry, 2022
Ti-doped maghemite nanoparticles of average crystallite size 12.9 nm were synthesized using the sol–gel method. The XRD profile mainly showed the presence of maghemite phase with very small phases of TiO2 (rutile and anatase).
Venkatesha Narayanaswamy, Imaddin A. Al-Omari, Aleksandr S. Kamzin, Hafsa Khurshid, Abbas Khaleel, Bashar Issa, Ihab M. Obaidat   +6 more
doaj   +1 more source

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

Advanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi, Hiroyuki Awano, Kenji Tanabe   +2 more
wiley   +1 more source

Fe–Pt films prepared from plating baths containing glycine as a complexing agent

AIP Advances
We have reported Fe–Pt films with hard magnetic properties electroplated from plating baths using citric acid as a complexing agent. The present study focuses on glycine as a new complexing agent instead of citric acid.
Takeshi Yanai, Naoki Ogushi, Yuito Yamaguchi, Daiki Fukushima, Akiho Hamakawa, Akihiro Yamashita, Masaki Nakano, Hirotoshi Fukunaga   +7 more
doaj   +1 more source

Exploration of the Reduction Diffusion Temperature for Different Phases of Samarium–Cobalt Magnetic Particles

Molecules
We report a method for synthesizing different phases of samarium–cobalt particles through microwave-assisted combustion combined with high-temperature reduction and diffusion, and identify the optimal temperature for forming the 1:5 phase using this ...
Yani Lu, Xiangyu Ma, Jinping Ren, Jinke Kang, Yatao Wang   +4 more
doaj   +1 more source

Atomistic theory of thermally activated magnetization processes in Nd2Fe14B permanent magnet

Science and Technology of Advanced Materials, 2021
To study the temperature dependence of magnetic properties of permanent magnets, methods of treating the thermal fluctuation causing the thermal activation phenomena must be established.
Seiji Miyashita, Masamichi Nishino, Yuta Toga, Taichi Hinokihara, Ismail Enes Uysal, Takashi Miyake, Hisazumi Akai, Satoshi Hirosawa, Akimasa Sakuma   +8 more
doaj   +1 more source